Hop, Haakon; Wiencke, Christian; Vögele, Barbara; Kovaltchouk, Nikolaj A (2012): Fresh biomass of macroalgae collected at Hansneset, Kongsfjorden, Spitsbergen in 1996/1998 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.864321, Supplement to: Hop, H et al. (2012): Species composition, zonation, and biomass of marine benthic macroalgae in Kongsfjorden, Svalbard. Botanica Marina, 55(4), 399-414, https://doi.org/10.1515/bot-2012-0097
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Abstract:
We surveyed macroalgae at Hansneset, Blomstrand in Kongsfjorden, Svalbard, down to 30 m depth between 1996 and 1998. In total, 62 species were identified: 16 Chlorophyta, 25 Phaeophyceae, and 21 Rhodophyta. The majority of species (53.5%) belonged to the Arctic cold-temperate group, followed in frequency by species distributed from the Arctic to the warm-temperate region (25.9%). Four endemic Arctic species (Laminaria solidungula, Acrosiphonia flagellata, A. incurva, and Urospora elongata) were found. Two species (Pogotrichum filiforme and Mikrosyphar polysiphoniae) were new to Svalbard. Chlorophyta, Phaeophyceae, and Rhodophyta extended from the eulittoral zone down to 11, 21, and >30 m depths with maximum biomasses at 1-5 m, 5-10 m, and 5-30 m depths, respectively. Annual and pseudoperennial species had highest biomasses in the upper 5 m, while perennials were distributed deeper. The highest biomass (8600 g/m**2 wet weight) at 5 m depth comprised mainly L. digitata, Saccorhiza dermatodea, Alaria esculenta, and Saccharina latissima. The biogeographic composition of macroalgae at Hansneset was rather similar to that of northeastern Greenland, but different from that of northern Norway, which has a higher proportion of temperate species. Climate warming and ship traffic may extend some of the distribution ranges of macroalgae from mainland Norway to Svalbard.
Coverage:
Latitude: 78.985100 * Longitude: 11.965900
Minimum DEPTH, water: 0.0 m * Maximum DEPTH, water: 30.0 m
Event(s):
Comment:
replicate a: transect taken by Barbara Voegele: Late May-mid July 1996replicate b,c: transect taken by Haakon Hop: 26 August to 10 September 1996 and 14 August to 10 September 1998
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, water | Depth water | m | Hop, Haakon | Geocode | |
| 2 | Replicate | Repl | Hop, Haakon | |||
| 3 | Acrosiphonia spp., biomass, wet mass | Acrosiphonia spp. biom wm | g/m2 | Hop, Haakon | Quantitative frame sampling | including Spongomorpha spp. - annual |
| 4 | Pylaiella littoralis, biomass, wet mass | P. littoralis biom wm | g/m2 | Hop, Haakon | Quantitative frame sampling | annual |
| 5 | Fucus distichus, biomass, wet mass | F. distichus biom wm | g/m2 | Hop, Haakon | Quantitative frame sampling | perannual |
| 6 | Chorda filum, biomass, wet mass | C. filum biom wm | g/m2 | Hop, Haakon | Quantitative frame sampling | annual |
| 7 | Chordaria flagelliformis, biomass, wet mass | C. flagelliformis biom wm | g/m2 | Hop, Haakon | Quantitative frame sampling | annual |
| 8 | Dictyosiphon foeniculaceus, biomass, wet mass | D. foeniculaceus biom wm | g/m2 | Hop, Haakon | Quantitative frame sampling | annual |
| 9 | Haplospora globosa, biomass, wet mass | H. globosa biom wm | g/m2 | Hop, Haakon | Quantitative frame sampling | annual |
| 10 | Alaria esculenta, biomass, wet mass | A. esculenta biom wm | g/m2 | Hop, Haakon | Quantitative frame sampling | perannual |
| 11 | Laminaria digitata, biomass, wet mass | L. digitata biom wm | g/m2 | Hop, Haakon | Quantitative frame sampling | perannual |
| 12 | Laminaria saccharina, biomass, wet mass | L. saccharina biom wm | g/m2 | Hop, Haakon | Quantitative frame sampling | perannual |
| 13 | Laminaria solidungula, biomass, wet mass | L. solidungula biom wm | g/m2 | Hop, Haakon | Quantitative frame sampling | perannual |
| 14 | Laminaria spp., young, biomass, wet mass | Laminaria spp. young biom wm | g/m2 | Hop, Haakon | Quantitative frame sampling | perannual |
| 15 | Saccorhiza dermatodea, biomass, wet mass | S. dermatodea biom wm | g/m2 | Hop, Haakon | Quantitative frame sampling | annual |
| 16 | Desmarestia aculeata, biomass, wet mass | D. aculeata biom wm | g/m2 | Hop, Haakon | Quantitative frame sampling | perannual |
| 17 | Desmarestia viridis, biomass, wet mass | D. viridis biom wm | g/m2 | Hop, Haakon | Quantitative frame sampling | perannual |
| 18 | Devaleraea ramentacea, biomass, wet mass | D. ramentacea biom wm | g/m2 | Hop, Haakon | Quantitative frame sampling | including Elachista fucicola - perannual |
| 19 | Odonthalia dentata, biomass, wet mass | O. dentata biom wm | g/m2 | Hop, Haakon | Quantitative frame sampling | annual |
| 20 | Ptilota gunneri, biomass, wet mass | P. gunneri biom wm | g/m2 | Hop, Haakon | Quantitative frame sampling | perannual |
| 21 | Callophyllis cristata, biomass, wet mass | C. cristata biom wm | g/m2 | Hop, Haakon | Quantitative frame sampling | annual |
| 22 | Phycodrys rubens, biomass, wet mass | P. rubens biom wm | g/m2 | Hop, Haakon | Quantitative frame sampling | perannual |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
440 data points